The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 24, 2013
Filed:
May. 11, 2012
Axel Eckstein, Heidenheim, DE;
Juergen Hofstetter, Heidenheim, DE;
Axel Eckstein, Heidenheim, DE;
Juergen Hofstetter, Heidenheim, DE;
Paul Hartmann AG, Heidenheim, DE;
Abstract
A portable device () to generate a vacuum for the medical treatment of wounds on the bodies of humans or animals has a vacuum-producing suction pump () in a first housing part () of the device and a vessel () for receiving body liquids. Vacuum is applied for vacuum communication between the suction pump (), the vessel () and a suction tube () leading to the body. A pressure sensor () measures the pressure in a tube section () and a programmable electronic control unit () controls the suction pump () in dependence on pressure values measured by the pressure sensor (). The electronic control unit () deactivates the suction pump () if a rate of change in pressure (Δp/Δt) detected by the pressure sensor () exceeds a defined threshold value toward decreasing vacuum.